Developmental scientists are often interested in subgroups of people who share commonalities in aspects of development; these subgroups often cannot be captured directly but instead must be inferred from other information. Mixture models can be used in these situations. Two specific types of mixture models, latent profile transition analyses and…

The article discusses problems inherent in using the developmental model in the implementation of programs for young children with disabilities, and proposes a reconceptualization based upon M. Lewis and M. Starr's salient responses model. The primary components of this model are presented, along with their implications for early intervention…

The primary aim of this book is to integrate findings on health and illness in adolescence. The book is geared towards those in the health psychology field as well as others concerned with the issues of adolescent health. It argues the value of following a developmental approach to the study of health or illness in general, and especially for…

This article evaluates the "Frames, then Content" hypothesis for speech acquisition, which sees babbling as a direct result of producing syllabic "frames" by rhythmic mandibular oscillation with little of the "content" seen under mandible-independent control. Analysis of 6,659 utterances of 6 normally developing…

Two approaches that apply Piaget's theory of cognitive development to the study of child psychopathology are presented. (PCB)

Presented is a model of curriculum design for history instruction using the concept cluster approach. The importance of proper age/grade placement when teaching historical concepts and the developmental characteristics of children and adolescents are emphasized. (Author/RM)

Measured the pattern goodness effect at visual encoding stages and short term memory stages in observers aged 6 to 22 years using a speeded sequential same-different paradigm. Found goodness effects were larger in short term memory for all subjects, memory effects decreased with age, and encoding effects remained constant. (SKC)

This rejoinder to critiques (EC 602 213-215) of the authors' article (EC 602 212) on stereotypy and self-injury in the disabled responds to specific objections raised, including misleading statements, failure to address other existing models, misunderstandings, and need to include neurochemical factors. (DB)

The purpose of this study was to determine how children at different ages understand the concept of temperature, examining particularly the logicomathematical aspects of the concept. In doing so, three developmental approaches were compared: (1) Piaget's structuralist approach; (2) Siegler's rule assessment approach; and (3) Anderson and…

Adopts a longitudinal design to track mother-child developmental change in infant task-related mastery and concomitant maternal behavior. Finds that, as infants gain more mastery across time, mothers gradually withdraw support in terms of concrete, specific and nonverbal means of instruction. Results support a one-step-ahead model for maternal…

Analysis of spelling errors of 45 primary-school children needing reading and writing improvement found that a considerable proportion of errors involved both syllabic reduction and feature changes similar to those seen in normal speech development. A model is presented to account for the phonological simplifications seen in both speech and…

A three-level model explains the emergence and maintenance of rhythmic stereotypy and self-injury in disabled individuals: Level 1, internally regulated rhythmic behaviors; Level 2, stereotypy and self-injury as adaptive responses to understimulating or overstimulating environments; and Level 3, stereotypy and self-injury as learned behaviors to…

The purpose of this paper is to review and synthesize the literature on adult development and to suggest how this information can be applied to the practice of adult education. The first section discusses the nature of adult development, its definition, and key concepts. Sequential patterns of change in adulthood are examined in section 2,…

This study attempted to search for a learning hierarchy among the skills comprising formal operations and the integrated science processes. Data were obtained from two instruments administered to 741 high school science students. The Group Assessment of Logical Thinking (GALT) measured performance on six Piagetian cognitive modes: controlling…

Empirical validation of the Self-Identity Development Model of Oppressed People (SIDMOP) prompted the choice of a multi-methodological approach that would test the underlying theory and not the participants' ability to perform a matching task. Few identity developmental models of oppressed people have been systematically developed, and even fewer…